Alexandrian surgeon Ammonius Lithotomos, was the first to introduce lithoclastic cystotomy during the 3rd century BC in order to relieve a bladder's stone blockage. He had used a metallic hook or crotchet to remove the stone, which was named at the era "thrombus" of the urinary tract.
Keywords: Ammonius; ancient Greece; bladder stones; lithoclastic cystotomy; surgery; thrombus.